Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Calculate the amount of benzoyl peroxide (C6H5CO - O - O - OCC6H5) initiator required to produce 1 kg of polyethylene with an average molecular weight of 200,000 g/mol. Each benzoyl peroxide molecule produces two free radicals that are each capable of initiating a polyethylene chain. Assume that 20% of the initiator actually is effective and that all termination occurs by the combination mechanism.The polyethylene produced above is used to make a rope. The rope weighs 0.5 kg per meter. Calculate:i. the number of polyethylene chains in a 3-meter length of rope.ii. the total length of chains in the rope, assuming that the length of one repeat unit is 0.24495 nm.the percent crystallinity of the rope if the density of the rope is 0.92 g/cm3 and of the amorphous polyethylene is 0.87 g/cm3. Also, the density of fully crystalline polyethylene at room temperature is found to be equal to 0.993 g/cm3.Calculate the amount of benzoyl peroxide (C6H5CO - O - O - OCC6H5) initiator required to produce 1 kg of polyethylene with an average molecular weight of 200,000 g/mol. Each benzoyl peroxide molecule
A series RLC circuit with a resistance of 350 ohm has capacitive and inductive reactances of 260? and 510?, respectively. What is the power factor of the circuit
The membrane of a living cell can be approximated by a parallel-plate capacitor with plates of area 5.17 x 10-9 m2, a plate separation of 8.5 x 10-9 m, What is the energy stored in such a cell membrane
hobbes pushes calvin on a sled which is traveling at a constant velocity on a flat field. the coeficient of kinetic
An electron (q = 1.6 x 10-19 C) moves at 4.5 x 106 m/s in the + y direction through a uniform magnetic field with magnitude 6.2 T, Find the magnitude and direction of force on electron
A glass bead (diamter of about 2 mm) has a total charge of +10 nC. A proton is located at a distance of 6 cm from the center of the glass bead. What is the magnitude of the force experienced by the proton
Capacitors won't hold a charge indefinitely; as time goes on, charge gradually migrates from the positive to the negative plate. What is the Leakage resistance
A 3.25 mol sample of an ideal diatomic gas expandsadiabatically from a volume of 0.1990 m^3 to 0.704 m^3.Initially the pressure was 1.00 atm..
A 2.50-kg ball, moving to the right at a velocity of +3.83 m/s on a frictionless table, collides head-on with a stationary 8.10-kg ball. Find the final velocities of (a) the 2.50-kg ball and of (b) the 8.10-kg ball if the collision is elastic. (c) Fi..
q1. a student calculates the frequency of a waveform produced through a tuning fork to be 303 hz. if the tuning fork is
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
A 750g, 50-cm-long metal rod is free to rotate about a frictionless axle at one end. What is the rod's angular velocity immediately after the blow
A "sun yacht" is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances,it can be large enough to send the spacecraft outward from the Sunon a cost-free but slow trip. Suppose that the spa..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd